You and your friend are standing on identical skateboards with an industrial-strength compressed spring in
between you. After the spring is released, it falls straight to the ground and the two of you fly apart.
a. If you have identical masses, who travels farther?
b. If your friend has a bigger mass, who goes farther?
c. If your friend has a bigger mass who feels the larger force?
d. If you guys have identical masses, even if you push on the spring, why isn't it possible to go further than
your friend?